An enterprise uses Huawei Cloud Stack to carry private cloud services. It currently deploys an ARM architecture computing resource pool and uses IP-SAN to carry business storage. Due to the expansion of business scale, it needs to expand the corresponding resources. Which of the following analyses about the expansion of the enterprise’s resources is correct?

An enterprise uses Huawei Cloud Stack to carry private cloud services. It currently deploys an ARM architecture computing resource pool and uses IP-SAN to carry business storage. Due to the expansion of business scale, it needs to expand the corresponding resources. Which of the following analyses about the expansion of the enterprise’s resources is correct?
A . KVM resources and BMS resources can be planned in the newly created AZ at the same time
B . Create a new storage pool first and register a new storage backend. It is not recommended to expand the capacity of the original storage pool.
C . When newly deploying X86 computing resources, you can directly expand them to the original resource pool
D . When multiple AZs are expanded and share a storage pool, the storage backend and thin allocation ratio of each AZ must remain the same

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Answer: D